#423FED#423FED

#423FED is a mid, highly saturated blue. Relative luminance 0.108; OKLCH L 50.0% C 0.249 H 273.4°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#423FED
RGB	rgb(66, 63, 237)
HSL	hsl(241, 83%, 59%)
HSV	hsv(241, 73%, 93%)
CMYK	cmyk(72.2%, 73.4%, 0%, 7.1%)
CIE-LAB	lab(39.29, 55.61, -86.03)
CIE-LCH	lch(39.29, 102.44, 302.88°)
OKLab	oklab(50.04% 0.0149 -0.2489)
OKLCH	oklch(50.04% 0.249 273.4)
XYZ	xyz(19.3052, 10.8257, 81.1765)
Luminance	0.1083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423FED #EAED3F

analogous

#3F93ED #423FED #993FED

triadic

#423FED #ED423F #3FED42

tetradic

#423FED #ED3F93 #EAED3F #3FED99

square

#423FED #ED3F93 #EAED3F #3FED99

split-complementary

#423FED #ED993F #93ED3F

monochromatic

#120FA2 #1814DA #423FED #7977F2 #B0AFF7

Accessibility & contrast

On white

6.63

#423FED on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#423FED on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #423FED

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FED	#FFFFFF	#000000	##FFFFFF
##423FED	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065F2

Deuteranopia (green-blind)

#0054EA

Tritanopia (blue-blind)

#007293

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #423fed;
/* rgb */ color: rgb(66, 63, 237);
/* oklch */ color: oklch(50.0% 0.249 273.4);

Tailwind

colors: {
  custom: {
    50: '#8f76f4',
    500: '#423fed',
    950: '#000000',
  },
}

SCSS

$custom: #423fed;
$custom-light: #8f76f4;
$custom-dark: #000000;

JSON

{
  "hex": "#423fed",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 237
  },
  "hsl": {
    "h": 241.034,
    "s": 82.857,
    "l": 58.824
  },
  "oklch": {
    "l": 0.50036,
    "c": 0.24935,
    "h": 273.4
  },
  "luminance": 0.10828
}

Semantic roles & 50–950 ramp

primary

#423FED

secondary

#E5E6A2

accent

#F92FF6

background

#F9F7FF

surface

#F2EDFF

border

#CCC8D7

text

#0F0917

muted

#7E7B85

Preview Lab

Preview with #423FED

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →